Wrecking-frog



(No Model.)

D. S. DOOKSTADER. WREGKING FROG.

No. 484,703. Patented Oct. 18,1892.

UNITED STATES PATENT Dan ca.

DENNIS S. DOCKSTADER, OF MEADVILLE, PENNSYLVANIA.

WRECKlNG-FROG.

SPECIFICATION forming part of Letters Patent No. 484,703, dated October 18, 1.892.

Application filed April 6, 1892. Serial No. 427,978. (No model.)

To all whom it may concern:

Be it known that I, DENNIS S. DOCKSTADER, of Meadville, in the county of Crawford and State of Pennsylvania, have invented certain new and useful Improvements in Wrecking- Frogs, of which the following is a specification, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The object and nature of my invention will be fully set forth in the following specification and claims.

In the drawings, Figure 1 is a plan showing my improved wrecking-frog connected to a track-rail in position for use. Fig. 2 is a transverse section on the line x 00 of Fig. 1, and Fig. 3 is a side elevation.

Similar letters of reference indicate similar parts in the respective figures.

The frog consists of the bottom plate or straining-bar A, the top or working plate 13, and the hard-wood filling O. The bottom plate A is provided at each end with sawteeth a a, adapted to embed themselves in the sleepers or other support to hold the frog against the longitudinal movement. The top plate B is bent to have the longitudinally and oppositelyinclined portions 171) at each end and the laterally-inclined middle portion 1). The lateral inclination of the portion b is downward toward the track-rail to which the frog is adapted to be connected, as shown in Fig. 2. The portion b has also a lateral extension 6 (see Figs. 1 and 2,) whichis bent down at its outer edge to form a hook adapted to fit over the head of the track-rail. The space between the plates A and B is filled with hard wood 0, and the parts are united by rivets c c.

D represents a guard-rail supported on and adapted to be secured to the top plate B at reversed angles in order that the frog may be operative from either end. The frog is provided with bolt-holes 1, 2, 3, 4, 5, and 6, arranged as shown in Fig. 1. When the wheels of the derailed truck occupy the position indicated by the dotted lines in Fig. 1, the guard-rail D will be secured in position by removable bolts 01 d d, inserted in the bolt-holes 1, 3, and 5. In this position the guard-rail is shown in full lines; but should it be necessary to use the other end of the frog the guard-rail would occupy the position indicated by dotted lines in Fig. 1, and be secured in position by inserting the bolts d d d in the bolt-holes 2, 4, and 6, thus reversing its angle of inclination. It will be seen, therefore, that the frog can be used either way, it being only necessary to secure the guard-rail at the proper angle to guide the wheel toward the track-rail.

E represents a companion frog to be used in connection with the derailed wheel between the tracks. This frog E is similar in construction to the other frog, except that it is not as high and the middle portion has no lateral extension to fit over the head of the rail. Neither is it necessary to use a guardrail with this frog.

The operation is as follows: Assuming the wheels to be in the position indicated in Fig. 1 the two frogs are placed in position and the guard-rail D secured at the proper angle, as shown by full lines in said figure. Power being applied, the wheels will ride up the inclined ends of the frogs until the wheel on the outside of the track comes in contact with the guardrail D, which will, as the wheels advance, guide them toward their respective track-rails, which movement will also be facilitated by the lateral downward inclination of the portions Z) of the frogs. The flange of the wheel outside the track will be carried across its track-rail by the lateral extension I), and the frog E will raise the other wheel to asufficient height to enable the tread of the wheel to pass onto the top of its track-rail.

Having described my invention, I claim 1. A frog having longitudinally and oppositely inclined ends and a laterally-inclined central portion, combined with a guard-rail supported on the central portion and devices to secure said guard-rail at a suitable angle of inclination to adapt it to co-operate with a wheel riding up the frog from either end, substantially as described.

2. A frog having longitudinally and oppositely inclined .ends and a :central portion uniting said inclined ends, combined with a guard-rail supported on the central portion and sui able devices to secure said guard- 5 rail to the frog at angles reverse to each other, substantially as described,-andfor the purpose fet forth.

iLn testimony whereof I have hereunto set my hand and seal.

DENNIS S. DOOKSTADER. [L.s.]

Witnesses:

A.-G.-OA:K*ES, CHAS. PEIFFER. 

